adjective. Of or relating to geologic periods that precede the appearance of life.

Destitute of organic life: in geology, applied to rocks which are destitute of any fossil remains or other evidence of the existence of life at the period of their deposition.

adjective. Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe. rocks.

adjective. the age preceding the existence of animal life, or anterior to the paleozoic tome. Azoic is also used as a noun, age being understood. See Archæan, and Eozoic.

adjective. Destitute of any vestige of organic life, or at least of animal life; anterior to the existence of animal life; formed when there was no animal life on the globe; as, the azoic rocks.

adjective. before the appearance of life

"Scientists long ago clung to the "azoic hypothesis" about the deep -- the presumption that nothing could possibly be alive so far from the photosynthetic world."

early  

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